#include<bits/stdc++.h>
using namespace std;
int t[100007],mx=-1;
int main(){
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    ios::sync_with_stdio(false);
    cin.tie(0),cout.tie(0);
    int n;
    cin>>n;
    for(int i=1,x;i<=n;++i){
        cin>>x;
        t[x]++;
    }
    for(int i=1;i<=100000;++i){
        if(t[i]) mx=max(mx,t[i]);
    }
    cout<<mx;
    return 0;
}
